Retrieve the latest revision of record or a specific version.
Returns a hash with either 'errorcode' and 'errormessage' or a hash with 'id',
'record' (a PICA::Record object),
'version',
and 'timestamp'.

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself,
either Perl version 5.8.8 or,
at your option,
any later version of Perl 5 you may have available.